Fresh milk is healthy milk.

Because a few enzymes in milk will decompose nutrients in milk, produce unpleasant smell and taste, and affect the quality of milk. Therefore, for safety and nutrition reasons, the extruded fresh milk must be processed. There are two kinds of processed milk: fresh milk and normal temperature milk. Fresh milk is sterilized by the advanced pasteurization method at present, and some beneficial bacteria are retained while removing harmful bacteria from milk, so that the freshness of milk is maintained to the greatest extent and the nutritional value of milk is not lost; Normal temperature milk adopts ultra-high temperature sterilization, which instantly kills all bacteria that may lead to deterioration, and also leads to the loss of certain nutritional value, but the shelf life is relatively long. Comparatively, fresh milk is more nutritious.